Valve for gas-engines.



E. BERLINER & H. D. CHAPMAN.

VALVE FOR GAS ENGINES.

APPLICATION min MAR. 21, 1912.

Patented May 18, 1915 To all whom it fiay concern mvrrnn STATES PATENT OFFICE. I

. EMILE BERLINER. Ann swam) n. CHAPMAN, or wnsnnie r'ronf'msrnrcr or COLUMBIA, ASSIGNORS 'ro THE GYRO MOTOR COMPANY, or wnsnmefolvfmu,

DISTRICT OF COLUMBIA, A CORPORATION DELAWARE.

Specification, of Letters Patent:

Application filed March 21,1912. Serial No. 685,275.

Be it known that we, EMILE BnRLrNEn and HOWARD D. CHAPMAN, citizens of the United States, residing at Washington, in the District of Columbia, have invented certain new and useful Improvements in Valves for Gas-Engines, of which the following is a description, reference being had to the accompanying drawing and to the figures of reference marked thereon.

The invention relates to new and useful improvements in valves for internal combustion engines, and more especially to the manner of detaching the'valve proper from its operating or seatingmechanism.

An object of the invention is to provide a valve construction wherein the valve proper may be readily detached'from' the perating devices therefor without detaching the opcrating devices from the valve seat, or in any other way disturbing the valve-operating mechanism. v

A further object of the invention is to provide a valve of the above character with a locking device for holding the samein operative engagement with the devices which move the valve relative to its seat, which locking devices are so constructed as not to interfere in any way with the movements of the valve toward and from its seat.

A further object of the invention is to provide a locking device of the above character with means whereby said locking device may be held from turning through the rapid vibration of the parts in which it is; seated.

These and other objects will in part be obvious, and will in part be hereinaftet more fully described.

In the drawings which show by waybf illustration one embodiment of the inven tion, Figure l is a SBCtlOIlfLl view through a cylinder showing an intake valve located in the' ipiston head with the improvements.

applied thereto; Fig; 2 isa perspective view, showing the valve seat with the valve separated therefrom; also the locking pin for holding the'parts assembled;'Fig. 3 is adetail of the valve, showing'the parts in operative position; Fig.-4= is a slmi'lar view, showing the valve rotated so as to release the same from the operating parts; and Fig, 5 is a detail showing the manner of holding the pin from turningso as to release the valve;

As herein shown, the invention is ap' plied to a valve which is located in the head of a 1 piston 1, which reciprocates relative to a cylinder 2. The piston head is connected to a connectingrod 3. The piston has a central opening 4 thereii'i, through which extends a collar 5 having a valve seat 6 thereon. This collar is threaded and held to the piston head by a locking ring 7.

Brackets 8, 8, are carried bythe collar formmg the seat for the valve, and these brackets, form a bearizw for a pin 9, which joins the connecting rod to the piston 1.

Extending across the collar 5 forming the seat for the valve is a cross bar 10. This cross bar has a central sleeve 11, which receives the stem 12 of a valve 13. The valve 13 at its outer end is tapered as at 14:, so as to fit the seat 6 in the ring 5. The cross bar 10 is cut away to receive a lever 15, which is pivoted at 16 to said cross bar. The outer end of the lever isprovided with a forked end 17. i

The valve stem 12 has a notch 18 extending across'the same, which receives one of the forks 17 of the lever 15. It will be apparent, therefore, that any movement of Patented May 18, 1915,

the lever 15 will be imparted to the valve,

so as to move the same toward and from the valve seat; also any movement of the valve will be imparted to the lever 15. 'In other' words, the lever 15 is positively connected with the valve, so afs to move with the same as it moves toward gand from its seat. This levpr 15 is controlled and operated by a centrifugally controlled arm 19, ,as fully therefore, further description of the operating means for the valve will not be necessary. As a matter of fact, the present operating means is merely shown as being typi: f

Without taking down the'cylinderor takingthe piston head out of the cylinder and sepashown and described in the patent granted fto Robert-S. Moore and James L. Simmons, No; 1,004,457, September 26th, 1911, and,

rating the connecting rod and other operating parts from the piston. To this end, the valve stem is cut away von one side, as at (see Fig. 2), so that the lower wall of the, notch 18 extends only half way across the l5, and, therefore, the forked end 17 will be operating position, and as in engagementwithdrawn from the'notoh 18, so that the lever may be lifted from its seat.

'In Fig. 3 is shown the valve in its normal with the operating lever. In Fig. 4: the

valve'is shown asturned to'an arc of 90, and in position to be removed from its valve' seat as it is disconnected from the operating lever.

10 is formed with a threaded opening, in which is screwoda sleeve 21. A pin 22 passes through an opening 23 in the valve,

'pin.' The valve in its upper face is provided with a shallow recess 26. The pin is screwed into the valve, and when the head rests fiat against the outer face of the valve, said flange Q5-is indented so as to cause a projecting part thereof to extendinto the recess 26, and this projecting part in the recess will prevent'the pin from turning in its socket, and thereby .hold said pin from movement due to the vibration of the parts.

In'the outer end of the cylinder, as herein shown, is an exhaust valve 27, which may be secured to the cylinder in any well known way. When it is desired to remove and re place the valve, the exhaust valve fitting 27 is removed, so as to give access to the end of the cylinder. The pin 22 which looks the valve from rotating on its seat is removed, after which a suitable threaded implement may be inserted into a threaded hole 28 centrally of the valve and the valve turned on its seat through an arc of 9 ,0. This turning of the valve will bring the notch 18 out of engagement with the end of the operating connected from the operating lever 15. The

In order to holdsthe valve in proper oper-v ating relation to the lever 15, the cross bar through the opening for the exhaust valve,

and after it is placed on the valve seat it is givena quarter turn, and the-locking pin inserted to hold it from further turning on the seat.

While we have shown our improvements as applied to the intake valve located in the pistonhead of a cylinder, it is-obvious that said improvements may be applied to valves of various character used in connection with internal combustion engines. tion, however, is especially adapted to a valve of this character located in the piston head, as it renders the valve accessible forv removal, without requiring the taking out of t the piston head, or the removal of the cylinder.

It is also obvious that minor changes in the details of construction and the arrangement of parts may be made, without depart" The invert-- ing from the spirit of the invention, as set forth, in the appended claims. 1

Having thus described our invention, what we claim as new and desire to secure by Letters Patent, is v -=1. A gas engine including in combination a valve seat, a valve for engaging said seat, means connected to the valve for operating the same, the connection between the valve and the operating means being so constructed that said valve may be disconnected from said operating means by a rotation .of'

the valve on its seat.

2.- A gas engine including 1n combinatlon' a valve seat, a valve for engaging sald seat,

means connected to the valve for operating a the same, the connection between the valve and the operating means being so constructed that said valve may be disconnectedfrom said operating means by a rotation of the valve on its seat, and means for locking. the valve against rotation on its seat, said looking means being constructed to permit the valve to-move toward and from its seat.

3. A gas engine including in combination a valve seat, a valve for engaging said seat, I means connected to the :valve for operating the same, the connection between thevalve and the operating means being so constructed that said valve may be disconnected from said operating means bya rotation of the valve on its seat, a locking pin for preventing the valve from turning on its seat, and

means for holding said pin in said valve.

4. A gas engine including in combination, a valve seat, a valve for engaging said seat, a. stem carried .by the valve, said stem having a notch at its lower end and the side .of the stem adjacent the notch cut away, an operating lever for the valve having an end adapted to engage said notch and said cut 'away portion, whereby when said valve is rotated, said stem may be disconnected from said lever.

inasfewl 5. A gas engm' e including on;

evel vef seam valve forengagi saidastem earried by the velve, sail stem heving a, notehQat its lower end the side opera-ting lever for the Valve having an end inge notchiat its lower end and the side of the stem adjacent the motel cu't'awey, an

operating leverfor the valve-having an'end adapted to engage said notch andsaid cut away portiemvlherehv when said valve rotated said stem may disconnected from said .10 ver; a sleeve carried by the-valve seat and a pin deta-ehably carried by the valve and ceb'perating with said sleeve for-locking the valve from rotation on its seat, said p111 h'eeiy engaging said sleeve whereby the,

of the stem adjacent thenoteh eut.a,wa.y, an--- its seat... 1 2 A gas ing is 11066211 at its lower 'endandthe side of alve to mevetovvard and freln .Y e i g.in mi b i s; a valve seat, a valve for engaging said seat,

a stem carried-by the-valve, said stem hav-*30 the :stemedjacentthenotch cutawe an.

L' pera'ting lever for the valve havingan end adapted to engage said notchand said cut 1 away portion, whereby'when said valve is rotated said stem may be disconnected from i said lever, a, sleeve earried by said valve seat, a pin slidingly engaging vsaid sleeve and having a head threadedinto the valve, the, head of said pin havinge flange adapt ed to be indented. into a recess in fihdfll ltef Ifa'ce 'of the"velve,.whereby said pin is held from turning in its threaded seat.

natures, in the presence of two witnesses EMILE BERLINER.

7 HOWARDD. CHAPMAN.

Witnesses:

ELIZABETH SMITH,

ROBERT STUNZ.

In testimony whereof; 'weaflig f 51 

